CN104514659B - Fluid ejector - Google Patents
Fluid ejector Download PDFInfo
- Publication number
- CN104514659B CN104514659B CN201410516501.5A CN201410516501A CN104514659B CN 104514659 B CN104514659 B CN 104514659B CN 201410516501 A CN201410516501 A CN 201410516501A CN 104514659 B CN104514659 B CN 104514659B
- Authority
- CN
- China
- Prior art keywords
- valve
- valve body
- compensating element
- porose disc
- fluid ejector
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
- F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
- F02M61/167—Means for compensating clearance or thermal expansion
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
- F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
- F02M61/18—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for
- F02M61/1853—Orifice plates
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
- F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
- F02M61/18—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for
- F02M61/1853—Orifice plates
- F02M61/186—Multi-layered orifice plates
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
- F02M63/02—Fuel-injection apparatus having several injectors fed by a common pumping element, or having several pumping elements feeding a common injector; Fuel-injection apparatus having provisions for cutting-out pumps, pumping elements, or injectors; Fuel-injection apparatus having provisions for variably interconnecting pumping elements and injectors alternatively
- F02M63/0225—Fuel-injection apparatus having a common rail feeding several injectors ; Means for varying pressure in common rails; Pumps feeding common rails
- F02M63/0275—Arrangement of common rails
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
The present invention relates to the fluid ejectors (10 for the injection fuel into combustion engine (115)；200), the fluid ejector (10；It 200) include: valve (25), tubular valve body (15) and porose disc (30), wherein the valve (25) includes valve seat (65) and moveable device for opening (35) to open and close the valve (25), wherein porose disc (30) configuration is located at the opposite side of the device for opening (35) at the valve seat (65), and is configured to be formed in the open position of the valve (25) by the fluid ejector (10；200) fluid (96) distributed are sprayed.Provide compensating element, (70) and tightening member (75), wherein compensating element, (70) configuration is between the valve seat (65) and the tightening member (75), wherein the tightening member (75) is configured and arranged to the valve (25) being fastened to the compensating element, (70) in a manner of pressing in advance in the valve body (15).
Description
Technical field
The present invention relates to fluid ejectors, especially for spraying the fluid ejector of fuel, institute into combustion engine
Stating fluid ejector includes: valve, tubular valve body and porose disc, wherein the valve includes moveable device for opening to open valve,
Wherein the porose disc configuration is located at the opposite side of the device for opening at the valve, and is configured to the opening in the valve
Position restriction goes out the fluid of the atomization quality distributed by the fluid ejector, especially sprays into combustion engine.
Background technique
10 2,010 064 268 A1 of DE teaches the fuel injector for spraying fuel into combustion engine.Combustion
Material ejector includes electromagnetic actuators, moveable needle and valve closure body.In the downstream side of valve seat, perforated tray is configured to limit
Make the atomization quality of valve.Porose disc is soldered to valve seat.In order to which porose disc is soldered to valve seat, porose disc must include centainly pre-qualified
Thickness.
Summary of the invention
The object of the present invention is to provide a kind of improved fluid ejectors.
The purpose is solved by the fluid ejector with feature as described in technical solution 1.Advantageous embodiment is in subordinate skill
It is shown in art scheme.
According to the present invention, what is had appreciated that is that can be mentioned by the fluid ejector including valve, tubular valve body and porose disc
For improved fluid ejector.Valve includes moveable device for opening and valve seat.Device for opening particularly including needle.In the pass of valve
Closed position, device for opening are seated on valve seat.Porose disc configuration is located at the opposite side of device for opening at valve seat, and is configured to
In the open position of valve, the fluid of atomization quality is limited, the fluid is distributed by fluid ejector, is especially sprayed to burning
In engine.
Opposite side of the porose disc configuration at valve seat positioned at device for opening particularly relates to the downstream that porose disc is located in device for opening
And it is preferred that also in the downstream of valve seat.Device for opening advantageously can largely be located in the upstream of valve seat.It is only used for
A part of example, the needle point of needle stretches out valve seat downstream.Valve seat can advantageously include valve body.In the situation
Under, device for opening is located in the upstream of valve body, and porose disc is located in the downstream of valve body.
Porose disc, which is configured to limit, to be particularly related to porose disc by the fluid of the atomization quality of fluid ejector distribution and is constructed
It is shaped to the fluid spray distributed by fuel injector.Porose disc has the one or more spray-holes for being used to form fluid spray.
Further it is provided that compensating element, and tightening member, wherein compensating element, configuration is special between valve seat and tightening member
It is not between valve body and tightening member.Tightening member is configured and arranged to tight in a manner of (pre-stressed) to press in advance
Gu valve of the compensating element, in valve body.
The construction avoids to form cracking, and ensures the correct flowing during life of product and spraying performance.Separately
Outside, multiple freedom degrees when design porose disc can be promoted.In addition, hole can be realized by the identical production technology that limitation item and hole are formed
Disk.In addition, limitation is not present in the thickness to porose disc, to avoid any crackle after assembling porose disc.This leads to fluid injection
The more preferable atomization quality of device.
In one embodiment, compensating element, is configured to allow for porose disc to move relative to valve seat especially with respect to valve body
It is dynamic.For example, can permit expansion and contraction of the porose disc relative to valve body and/or tubular valve body in this way.May for example due to by
This relative expansion and contraction occur for the temperature change or the temperature by changing environment that combustion process is realized.Advantageously,
As porose disc relative to the different heat expansion of tubular valve body or valve body and caused by mechanical stress thus can be especially small.
In another embodiment, compensating element, includes at least one of following material: polytetrafluoroethylene (PTFE), high temperature resistant modeling
Material, the material that metal cannot be soldered to.These materials ensure: porose disc can be bent during fluid ejector sprays fluid,
And porose disc can overcome the valve seat or mounting ring slightly to move.
In one embodiment, valve includes opening, and wherein device for opening does not stop the opening in the open position of valve.It is described
The through-hole being open especially through valve body.Compensating element, is ring-shaped, so that it includes central opening.For example, compensating element,
It is washer, i.e., it is with annular shape, in the shape of hollow cylinder, or in the shape of perforated tray.The central opening and valve
Superposition of end gap.In other words, when overlooking opening, compensating element, surrounds the opening of valve circumferentially, and is not overlapped the opening.
The design provides the optimum fluid flow across injector, and compensating element, does not influence the atomization quality of injector.
In another embodiment, fuel injector includes high-pressure area, is limited by the valve seat and tubular valve body of valve.Compensation
Element is configured to help to seal high-pressure area, the in particular to combustion chamber of combustor.For example, compensating element, which represents, is in valve
The lip ring of interface between pedestal and porose disc, the lip ring entirely around valve opening circumferentially.It should
Construction ensures that fluid is distributed just through the spray-hole of porose disc, and reduces the wind that fuel injector leaks into area of low pressure
Danger.Compensating element, can also be operable, with the high-pressure area of the interface between sealing valve pedestal and valve body.
In another embodiment, tightening member includes mounting ring.Mounting ring is connected to the inner peripheral surface of valve body.Porose disc configuration exists
Between mounting ring and valve seat.The design allows porose disc to be tensioned during course of injection without damaging porose disc.
In another embodiment, the inner peripheral surface for installing circumferential valve body at least provides the (clamping that is clamped and connected
connection).For example, being clamped and connected is frictional fit.The construction provides installation during the manufacturing process of fuel injector
Being reliably connected between ring and valve body.
In another embodiment, mounting ring is soldered to the inner peripheral surface of valve body, especially as the additional of frictional fit connection
Or substitution.This be connected in entire life of product between mounting ring and valve body is reliable.
In another embodiment, compensating element, is configured between mounting ring and porose disc.The construction can be easily fixed.
In another embodiment, compensating element, is configured between valve seat and porose disc.The construction can be also easily fixed.
Detailed description of the invention
In the following, the present invention will be described in detail with reference to the attached drawings, in attached drawing:
Fig. 1 shows the longitudinal section of the fuel injector of first embodiment；
Fig. 2 shows the details of the longitudinal section of fuel injector shown in Fig. 1；
Fig. 3 shows the details of the longitudinal section of the fuel injector of second embodiment.
Specific embodiment
Fig. 1 shows the longitudinal section of the fluid ejector 10 across first embodiment.Fig. 2 shows longitudinal sections shown in Fig. 1
Details.Fluid ejector 10 is fuel injector, for that the fuel injection of fluid 96 will be used as into inlet manifold or internal combustion
In the combustion chamber 115 of engine.
Fuel injector 10 includes tubular valve body 15 and shell 16, shares longitudinal axis 20.The configuration of tubular valve body 15 exists
In shell 16.Fuel injector 10 further includes valve 25 and porose disc 30.Porose disc 30 has multiple spray-holes 118, fluid ejector 10
Fluid 96 is distributed across the multiple spray-hole 118.
Valve 25 includes moveable device for opening 35.Device for opening 35 includes spring 40, calibrating element 46 and tubulose needle
50.Calibrating element 46 is fastened to valve body 15 and reloading spring 40.Spring 40 configures between calibrating element 46 and needle 50, makes
It is obtained towards closed position needle 50.Fluid ejector 10 further comprises actuator 45, for axially moving pipe
Shape needle 50.
Valve 25 includes valve closure element 55 comprising tubulose needle 50 and valve seat 65.Valve closure element 55 is located in needle
50 end opposite with spring 40.Valve closure element 55 is spherical.
Valve seat 65 includes valve body 61.In the closed position of valve 25, valve closure element 55 is seated on valve body 61, so that
It abuts valve seat 65.
Valve disc 60 is provided to axially guiding valve closure element 55.Valve disc 60 is configured to adjacent to needle 50.Valve body
61 configurations are below valve disc 60.
In the side far from needle 50, valve body 61 is configured to adjacent compensating element, 70.Compensating element, 70 is ring-shaped, and
With flat structures.In other words, it is in the shape of flat perforated tray.Compensating element, 70 includes central opening 71.Compensating element,
70 contact with porose disc 30 and valve body 61.In lower section, that is, downstream of porose disc 30, it is configured with tightening member 75.Tightening member 75 includes
Mounting ring 80, the inner peripheral surface 85 for providing the outer peripheral surface 82 of mounting ring 80 to valve body 15 are clamped and connected 81.
Fluid ejector 10 includes high-pressure area 95.In the region of the fluid exit portion of fluid ejector 10, high pressure
Region 95 is defined by valve body 15 and valve seat 65.High-pressure area 95, which is full of, the pressurized fuel from fuel-injection pump or rail system
96。
Valve body 15 has the first section 100 and the second section 101.In one embodiment, the internal diameter ratio of the first section 100
Second section 101 is small.Needle 50 configures in the first section 100.Valve seat 65 configures in the second section 101.In the first section
100 and second between section 101, and valve body 15 has convex (ledge) 102.Specifically the first and second sections 100 of convex 102,
101 interface.The top surface 103 of valve disc 60 or valve body 61 contacts convex 102.Due to connecing for convex 102 and top surface 103
Touching, when valve seat 65 to be mounted in valve body 15, can easily limit lengthwise position.Alternatively, the lengthwise position of valve seat 65
It can be defined in different ways.As a result, for example needing not be provided convex 102.
In order to ensure position of the valve seat 65 in valve body 15, valve body 61 is welded to connect 105 by means of first and is soldered to valve
Body 15.First is welded to connect 105 inner peripheral surfaces 85 that the outer peripheral surface 110 of valve body 61 is connected to valve body 15.First is welded to connect
105 is implementable for spot welding connection.
Between porose disc 30 and valve body 61, it is configured with compensating element, 70.Compensating element, 70 is squeezed into valve seat 65 and porose disc
Between 30.By the way that compensating element, 70 is squeezed between porose disc 30 and valve seat 65, it can be achieved that high-pressure area 95 to the close of area of low pressure
Envelope, the area of low pressure can be inlet manifold or the combustion chamber 115 of such as combustion engine.Advantageously, valve body is not needed
Fluid-tight circular weld between 61 and valve body 15 because compensating element, 70 be it is operable, in the outer of valve body 61
Interface between circumferential surface 110 and the inner peripheral surface 85 of valve body 15 seals high-pressure area 95.In addition, compensating element, 70 establish annular it is close
Envelope extends circumferentially around the spray-hole 118 of porose disc 30, so that fluid leaves fluid ejector 10 just through spray-hole 118,
So as to avoid the fluid leakage of the circumferential interface for the component for passing through fluid ejector 10.
In the closed position of valve 25, spring 40 presses needle 50 and valve closure element 55 against valve seat 65.In this way, valve is closed
Component 55 and 65 cooperating of valve seat, with the first opening 90 closed in valve body 61, so that when valve 25 is in the closed position,
There is no fuel to be assigned from fluid ejector 10.First opening 90 is coaxially configured with longitudinal axis 20.
Valve disc 60 includes the second opening 116.Second opening 116 laterally misplaces relative to valve closure element 55.Valve body
61 and valve disc 60 limit pipeline 117, the second opening 116 of connection is open 90 with first.
In order to open valve 25, actuator 45 overcomes the bias of spring 40, makes needle 50 with valve closure element 55 along remote
Axial direction 20 from valve seat 65 is simultaneously mobile towards calibrating element 46.In this way, gap is formed between valve seat 65 and closure element 55,
Enable the fluid 96 from pipeline 117 pass through the gap, across valve body 61 first be open 90 and pass through compensating element, 70
Central opening 71 to porose disc 30.Then fluid 96 is distributed from the spray-hole 118 that fluid ejector 10 passes through porose disc 30.?
After the spray-hole of porose disc 30, fuel 96 can be injected into combustion chamber 115 or inlet manifold.
Central opening 71 is Chong Die with the first opening 90 and spray-hole 118, so that fuel 96 flows downstream through compensation member
Part 70 and porose disc 30.Spray-hole 118 be used for limit fuel injector 10 atomization quality and spraying performance.Porose disc 30 may include not
Same quantity, shape and the spray-hole of position 118, such as to manipulate the fuel stream in combustion chamber 115 and influence combustion chamber 115
In fuel burning.
By providing into compensating element, 70 close to porose disc 30, steady flow of the porose disc 30 in entire life of product can be provided
Dynamic and spraying performance.Also it is avoided that porose disc 30 cracks during the operation of fuel injector 10.The attendant advantages of compensating element, 70
It is: can realizes porose disc 30 by manufacturing the same process of common porose disc.Traditionally, the thickness of porose disc 30 is made there is no limitation
The quantity that the freedom degree of porose disc 30 must be designed increases, and can realize better atomization quality with newly-designed porose disc 30.In addition,
It can be avoided during assembling fuel injector 10, especially when porose disc 30 and valve seat 65 weld, make that porose disc 30 cracks can
It can property.
When valve 25 is in an open position, fuel is oppressed the spray-hole 118 across porose disc 30.Due to the pressure of fuel 96
Power, porose disc 30 may be bent to the direction far from device for opening 35.The bending of porose disc 30 causes the micro-shifting for overcoming valve seat 65 dynamic.It is logical
The configuration compensating element, 70 between porose disc 30 and valve seat 65 is crossed, the micro-shifting of porose disc 30 is dynamic to be compensated by compensating element, 70.In order to pass through
Compensating element, 70 provides reliable compensation function, and compensating element, includes at least one of following material: polytetrafluoroethylene (PTFE), resistance to height
Warm plastics, the material that metal cannot be soldered to.
In the downstream of porose disc 30 or correspondingly on the downside of it, mounting ring 80 presses porose disc 30 and compensating element, 70 against valve seat
The lower surface 120 of body 61.For fuel injector 10 easy to manufacture, firstly, valve body 61 is inserted into valve body 15, until pushing up table
Face 103 contacts convex 102.Then, the outer peripheral edge side 110 of valve body 61 is welded on the peripheral side of valve body 15.Next, will
Compensating element, 70 and porose disc 30 are inserted into valve body 15.Next, mounting ring 80 is pressed into valve body 15, so that it presses porose disc 30
Against compensating element, 70, with precompressed compensating element, 70.Mounting ring 80 with its outer peripheral surface 82 be pressed against valve body 85 inner peripheral surface 85, and
Frictional fit connection 81 is provided between mounting ring 80 and valve body 15.By frictional fit connection 81, mounting ring 80 is relative to valve body
15 position can be pre-qualified, so that the position of compensating element, 70 and porose disc 30 also can be pre-qualified.Then, in its outer peripheral surface 82
Place, mounting ring 80 are soldered to valve body 15,130 are welded to connect in order to provide second, in the entire service life of fuel injector 10
Inside it is securely fixed its position.Due to the sealing performance of compensating element, 70, the second welding between mounting ring 80 and valve body 15 connects
Connecing 130 can connect for spot welding, be enough fixed porose disc 30 and precompressed compensating element, 70.
Fig. 3 shows the details of the longitudinal section of the fluid ejector 200 of second embodiment.
Fluid ejector 200 is similarly designed with fluid ejector 10 shown in Fig. 1 and 2.Different from first embodiment,
Compensating element, 70 configures between porose disc 30 and mounting ring 80.The structure has an advantage in that when installation fluid ejector 200
When, porose disc 30 can be inserted easily in valve body 15.In addition, fuel passes through second the 116, first opening 90 of opening and spray-hole
118 flowing is not influenced by the distance between porose disc 30 and valve seat 65, because there is compensating element, between these two parts
70, in first embodiment as illustrated in fig. 1 and 2 like that.
As additional optional difference, valve body 15 does not include convex as shown in figs. 1 and 2.Therefore, in the present embodiment
In, the position of valve seat 65 is welded to connect 105 by first and limits, and valve disc 60 is fixed to valve body 61.First is welded to connect 105
It can be fluid-tight circular weld in the present embodiment.
Substitution second is welded to connect 130, and continuous welded connecting can be provided between mounting ring 80 and valve body 15, so as to
Connect mounting ring 80 and valve body 15.In addition, when valve 25 is in an open position, compensating element, 70 mounting ring 80 and porose disc 30 it
Between configuration allow porose disc 30 fuel presses to opening 90,116,118 on when it is slight curving.
Embodiment shown in Fig. 1-3 provides reliable fluid ejector 10, has more high-freedom degree in the design, with
Just atomization quality is easily used to the design of the combustion chamber of combustion process.In the shown embodiment, when designing porose disc, design
Person will not be forced be associated with porose disc thickness and porose disc 30 in spray-hole 118 diameter come resist as porose disc 30 be bent caused by
Mechanical stress.By having the discrepant newly-designed porose disc 30, spraying performance can get.
Claims (11)
1. fluid ejector (10 of the one kind for the injection fuel into combustion engine (115)；200), the fluid ejector
(10；200) include:
Valve (25), tubular valve body (15) and porose disc (30),
Wherein, the valve (25) includes valve seat (65) and moveable device for opening (35), the device for opening (35) and institute
Valve seat (65) interaction is stated to open and close the valve (25), the valve seat (65) includes valve body (61),
Wherein, porose disc (30) configuration is located at the opposite side of the device for opening (35) at the valve seat (65), and
It is configured to be formed in the open position of the valve (25) by the fuel injector (10；200) spray of the fluid (96) distributed
Mist, the porose disc (30) are moveable relative to the valve body (61),
It is characterized in that, further including
Compensating element, (70) and tightening member (75),
Wherein, compensating element, (70) configuration is between the valve seat (65) and the tightening member (75), the compensation
It is mobile relative to the valve seat (65) that element (70) is configured to allow for the porose disc (30), and the compensating element, (70) is extruded
The inner peripheral surface and the valve body (61) of the tubular valve body (15) are contacted, thus outer peripheral surface and institute in the valve body (61)
The interface stated between the inner peripheral surface of tubular valve body (15) forms ring packing,
Wherein, the tightening member (75) is configured and arranged to fasten the compensating element, (70) in a manner of pressing in advance
To the valve (25) in the tubular valve body (15).
2. fluid ejector (10 according to claim 1；200), which is characterized in that the compensating element, (70) includes poly-
Tetrafluoroethene.
3. fluid ejector (10 according to claim 1；200), which is characterized in that the compensating element, (70) includes resistance to
High temperature plastics.
4. fluid ejector (10 according to claim 1；200), which is characterized in that the compensating element, (70) includes not
The solderable material for being connected to metal.
5. the fluid ejector (10 according to any one of preceding claims 1 to 4；200), which is characterized in that the valve
It (25) include opening (90),
Wherein, the device for opening (35) does not stop the opening (90) in the open position of the valve (25),
Wherein, the compensating element, (70) is ring-shaped, so that it includes central opening,
Wherein, the superposition of end gap of the central opening and the valve (25).
6. the fluid ejector (10 according to any one of preceding claims 1 to 4；200), it is characterised in that: higher-pressure region
Domain (95) is limited by the valve seat (65) and the tubular valve body (15) of the valve (25), wherein the compensating element, (70) quilt
It is configured to assist in the sealing high-pressure area (95).
7. the fluid ejector (10 according to any one of preceding claims 1 to 4；200), which is characterized in that described tight
Gu element includes mounting ring (80), wherein the mounting ring (80) is connected to the inner peripheral surface (85) of the tubular valve body (15),
Described in porose disc (30) configuration between the mounting ring (80) and the valve seat (65).
8. fluid ejector (10 according to claim 7；200), which is characterized in that the mounting ring (80) is to the pipe
The inner peripheral surface (85) of shape valve body (15) at least provides and is clamped and connected (81).
9. fluid ejector (10 according to claim 7；200), which is characterized in that the mounting ring (80) is soldered to institute
State the inner peripheral surface (85) of tubular valve body (15).
10. fluid ejector (10 according to claim 7；200), which is characterized in that compensating element, (70) configuration
Between the mounting ring (80) and the porose disc (30).
11. the fluid ejector (10 according to any one of preceding claims 1 to 4；200), which is characterized in that the benefit
Element (70) configuration is repaid between the valve seat (65) and the porose disc (30).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP13187341.6A EP2857671A1 (en) | 2013-10-04 | 2013-10-04 | Fluid injector |
| EP13187341.6 | 2013-10-04 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104514659A CN104514659A (en) | 2015-04-15 |
| CN104514659B true CN104514659B (en) | 2019-01-25 |
Family
ID=49303812
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410516501.5A Expired - Fee Related CN104514659B (en) | 2013-10-04 | 2014-09-30 | Fluid ejector |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US10132281B2 (en) |
| EP (1) | EP2857671A1 (en) |
| CN (1) | CN104514659B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102016211451A1 (en) * | 2016-06-27 | 2017-12-28 | Robert Bosch Gmbh | Injector with exact alignment of a valve seat |
| US10576480B2 (en) | 2017-03-23 | 2020-03-03 | Vitesco Technologies USA, LLC | Stacked spray disc assembly for a fluid injector, and methods for constructing and utilizing same |
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-
2013
- 2013-10-04 EP EP13187341.6A patent/EP2857671A1/en not_active Withdrawn
-
2014
- 2014-09-30 CN CN201410516501.5A patent/CN104514659B/en not_active Expired - Fee Related
- 2014-10-06 US US14/507,336 patent/US10132281B2/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5823444A (en) * | 1995-06-20 | 1998-10-20 | Robert Bosch Gmbh | Fuel injection valve |
| CN102405344A (en) * | 2009-04-20 | 2012-04-04 | 欧陆汽车有限责任公司 | Valve assembly for an injection valve and injection valve |
| CN103221679A (en) * | 2010-06-17 | 2013-07-24 | 欧陆汽车有限责任公司 | Damping element for an arrangement of a cylinder head of an internal combustion engine and an injection valve |
| DE102011080695A1 (en) * | 2011-08-09 | 2013-02-14 | Robert Bosch Gmbh | Fluid measuring valve for combustion engine, has valve portion and valve seat whose geometry is adapted to each other so that volume of gap formed outside of sealing portion at position between valve and seat portions is minimized |
Also Published As
| Publication number | Publication date |
|---|---|
| US20150096538A1 (en) | 2015-04-09 |
| US10132281B2 (en) | 2018-11-20 |
| CN104514659A (en) | 2015-04-15 |
| EP2857671A1 (en) | 2015-04-08 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190125 Termination date: 20190930 |